Kelly is putting up tile on a wall in a bathroom. the wall is 3.6 m long. each tile has a length of 40 cm. how many tiles will kelly be able to fit along the length of the wall?

How many joules of heat are absorbed to raise the temperature of 650 grams of water from 5.00c to it's boiling point, 100c

What elements have 2 electrons inthe 4s sublevel

Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o